Cover for tumbler



FIG. 1 is a top, front and left side isometric view of a cover for tumbler showing my new design;

FIG. 2 is a bottom, rear and left side isometric view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view, the rear elevation being identical thereto;

FIG. 6 is a left side elevation view, the right side elevation being identical thereto; and,

FIG. 7 is a cross-sectional view taken along line 7-7 of FIG. 3. 

CLAIM The ornamental design for a cover for tumbler, as shown and described. 